The All India Bank Officers Confederation (AIBOC) said the strike call on December 21 against Indian Banks' Associations move to leave officers in scale IV and above out of the bipartite wage settlement ambit.

In the wake of strikes and holidays, the banks will remain closed from next Friday to Wednesday, except on Monday and the banking services could adversely be affected on these days.

The banks will remain closed on December 22 and 23 on account of fourth Saturday and Sunday respectively. December 25 will be national holiday for Christmas.

ATM operations may be hit on December 26, the day the United Forum of Bank Unions (UFBU) has called a strike.